J2ee Technology Is Concentrated In Securities Online Trading System In The Research And Application

This atricle is completed according to a project which is called the new generation securities on-line concentrated trade system.At present,all the securities corporations are focusing their mind on the on-line concentrated trade system .which is a burgeoning field,their business system are experiencing a transition from the current dispersive system which centers on the sales department to the system which centers on the headquarters.The traditional dispersive system which centers on the sales department has many problems,such as bad portability,difficult to maintenance;difficult to extend,high cost when updated;weak processing ability,unable to support the concurrent visit by many users;bad security and so on.The concentrated system will much improve on the shortcoming of the original system,provide better service for users;but at the same time we will face many sharp problems caused by the concentrating process,among these problems.the performance of the system will be the greatest challenge before us.This article completes a lot of research and develop work focusing on this core problem,puts forward a set of wholly new solution.Firstly.this article lucubrates the distributed multi-tier application architecture.from CIS architecture to B/S architecture.from two-tier architecture to three-tier or multi-tier architecture.describing their advantages and shortcomings respectively.As the research foundation.it effectively instructs the design and develop of the securites on-line concentrated trade system. In succession.this article discusses J2EE,which is a wholly new architecture, its related critical technique and the middleware technifque, at the same time it particularly discusses how to apply these techniques to the design and implementation of the system,aiming at making the system have a better performance.On one hand.for the run-time performance,it means the system supports a large quantity of concurrent visit by users.fast response speed, good scalability.good reliability and good usability.On the other hand.for the non run-timeperformance.the system has good modifiability.good portabilty and good usability.so as to meet with the demands of the on-line concentrated trade system performace put forward by securities corporations.At last,it is the conclusion and prospect.